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Sodium polyacrylate in situ growth of Prussian blue nanocrystal composites and preparation method and application thereof

A technology of sodium polyacrylate and Prussian blue, which is applied in the field of nanocomposite materials and its preparation, can solve the problems of low Prussian blue content, easy aggregation of nanoparticles, complex preparation process, etc., and achieve easy recyclability, not easy to fall off, and simple operation Effect

Active Publication Date: 2016-03-16
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of complex preparation process of existing composite materials, easy agglomeration of nanoparticles, low content of Prussian blue, and easy fall-off, and provide sodium polyacrylate in-situ growth Prussian blue nanocrystalline composite material and its preparation method and application

Method used

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  • Sodium polyacrylate in situ growth of Prussian blue nanocrystal composites and preparation method and application thereof
  • Sodium polyacrylate in situ growth of Prussian blue nanocrystal composites and preparation method and application thereof
  • Sodium polyacrylate in situ growth of Prussian blue nanocrystal composites and preparation method and application thereof

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specific Embodiment approach 1

[0023] Specific embodiment one: In this embodiment, the sodium polyacrylate in-situ growth Prussian blue nanocrystalline composite material is made of polyacrylic iron and Prussian blue, wherein the mass percentage of polyacrylic iron is 40% to 90%. The mass percentage of blue is 10% to 60%.

[0024] The beneficial effects of this embodiment:

[0025] The in-situ growth of Prussian blue nanocrystalline composite material prepared by sodium polyacrylate in this embodiment is based on the three-dimensional network polymer of sodium polyacrylate as the matrix, and the rich oxygen-containing groups of sodium polyacrylate are used to reduce Fe 3+ Capture in the polymer network structure, and synthesize Prussian blue nanocrystal multi-level structure composite material in situ inside the polymer by in-situ growth self-assembly technology. The synthesized sodium polyacrylate / Prussian blue composite material has a size between 1-10 μm. Prussian blue nanocrystals are between 10 and 200nm, t...

specific Embodiment approach 2

[0026] Specific implementation manner 2: In this embodiment, the method for preparing sodium polyacrylate in-situ growth Prussian blue nanocrystalline composite material is carried out according to the following steps:

[0027] 1. Dissolve the ferric salt in a mixed solution of deionized water and glacial acetic acid in the ratio of mole to volume ratio of 1mmol: (15mL~35mL) under stirring conditions, and stir for 0.5h~2h to obtain a solution; where deionization The volume ratio of water to glacial acetic acid is 1mL: (0.5mL~1mL);

[0028] 2. Add sodium polyacrylate to the solution obtained in step 1, so that Fe 3+ With Na + The molar ratio of is 1:(2~3), continue to stir for 48h~96h and then stand for separation, collect the solid powder, then wash the solid powder with deionized water 3-6 times, and then collect the solid powder after filtration;

[0029] 3. Add the same volume of deionized water as the mixed solution of deionized water and glacial acetic acid in step one to the so...

specific Embodiment approach 3

[0032] Specific embodiment three: This embodiment is different from the specific embodiment two in that as described in step one, the ferric salt is dissolved in deionized water at a molar to volume ratio of 1mmol: (20mL-30mL) under stirring conditions. In a mixed solution of water and glacial acetic acid. Others are the same as the second embodiment.

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Abstract

The invention relates to a sodium polyacrylate in-situ growing prussian blue nanocrystalline composite, and a preparation method and an application thereof. The invention relates to a nanocomposite, and a preparation method and an application thereof. The invention aims to solve the problems that a conventional composite preparation process is complex; nanoparticles are easy to agglomerate; and plussian blue content is low and the composite is easy to fall off. The composite provided by the invention is prepared from 40%-90% of iron polyacrylate and 10%-60% of prussian blue. A method comprises the steps of 1. dissolving a trivalent iron salt in a mixed solution of deionized water and glacial acetic acid; 2. adding sodium polyacrylate; and 3. adding K4[Fe(CN)6] or Na4[Fe(CN)6]. The composite provided by the invention is used for preparing sodium polyacrylate in-situ growing prussian blue nanocrystalline composite foam polyurethane sponge.

Description

Technical field [0001] The invention relates to a nano composite material, a preparation method and application thereof, and belongs to the technical field of advanced nano composite material and environmental restoration. Background technique [0002] The steady development of the nuclear power industry provides an effective way to solve the world energy crisis, but it also brings potential nuclear radiation pollution concerns. Nuclear radiation pollution caused by nuclear leakage is currently the biggest safety and environmental hazard in nuclear energy applications. Studies have shown that nuclear pollution components include cesium (Cs-131, 133, 137), strontium (Sr90) and iodine (I-131, 135) and other radioactive elements, of which radioactive cesium (12.8%, half-life is about 30 years) As one of the main ingredients. For nuclear pollution control, general pollution treatment methods are still being used, such as: 1. The soil method, that is, heavy pollution replacement; 2....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/02C08K3/28C01C3/12C08G18/62C08J9/14C08L75/04B01J20/26B01J20/02C08G101/00
Inventor 于洪文杨红军
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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